mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: White to translucent, Luster: Vitreous to greasy, Crystal structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: White to translucent, Luster: Vitreous to greasy, Crystal structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific gravity: 2.65
Formation & geological history
Formed through the cooling of silica-rich magma or from hydrothermal veins. Milky quartz gets its opaque white color from tiny fluid or gas inclusions trapped during crystal growth.
Uses & applications
Used as an abrasive, in the production of glass, ceramics, and as a raw material for silicon semiconductors. Also used for decorative landscaping and as low-cost jewelry/gemstones.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust. Milky quartz is the most common variety of quartz found in nature.
Field identification & locations
Identify by its hardness (it can scratch glass), its white 'cloudy' appearance, and Lack of cleavage. It is ubiquitous in mountainous and igneous terrains worldwide.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous